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Correlation of Inte...
Correlation of Interface Interdiffusion and Skyrmionic Phases
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- Carvalho, Pamela C. (author)
- Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP, Brazil.
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- Miranda, Ivan P. (author)
- Uppsala universitet,Materialteori
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- Brandao, Jeovani (author)
- Ctr Nacl Pesquisa Energia & Mat, Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP, Brazil.
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- Bergman, Anders, 1978- (author)
- Uppsala universitet,Materialteori
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- Cezar, Julio C. (author)
- Ctr Nacl Pesquisa Energia & Mat, Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP, Brazil.
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- Klautau, Angela B. (author)
- Univ Fed Para, Fac Fis, BR-66075110 Belem, Para, Brazil.;Univ Aveiro, Dept Fis, P-3810183 Aveiro, Portugal.
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- Petrilli, Helena M. (author)
- Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP, Brazil.
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Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP, Brazil Materialteori (creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- English.
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In: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 23:11, s. 4854-4861
- Related links:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Magnetic skyrmions are prime candidates for the nextgenerationof spintronic devices. Skyrmions and other topological magnetic structuresare known to be stabilized by the Dzyaloshinskii-Moriya interaction(DMI) that occurs when the inversion symmetry is broken in thin films.Here, we show by first-principles calculations and atomistic spindynamics simulations that metastable skyrmionic states can also befound in nominally symmetric multilayered systems. We demonstratethat this is correlated with the large enhancement of the DMI strengthdue to the presence of local defects. In particular, we find thatmetastable skyrmions can occur in Pd/Co/Pd multilayers without externalmagnetic fields and can be stable even near room temperature conditions.Our theoretical findings corroborate with magnetic force microscopyimages and X-ray magnetic circular dichroism measurements and highlightthe possibility of tuning the intensity of DMI by using interdiffusionat thin film interfaces.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- skyrmions
- DMI
- interdiffusion
- symmetriclayers
Publication and Content Type
- ref (subject category)
- art (subject category)
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